Enabling Technologies for Fifth-Generation Mobile Communications

1Beijing University of Posts and Telecommunications, Beijing 100876, China 2China Mobile Research Institute, Beijing 100053, China 3Samsung Electronics Co., Ltd., Suwon-si, Gyeonggi-do 443-742, Republic of Korea 4Fraunhofer Heinrich Hertz Institute, 10587 Berlin, Germany 5Qualcomm Inc., 5775 Morehouse Drive, San Diego, CA 92121, USA 6Department of Electrical and Computer Engineering, University of California at San Diego, San Diego, CA 92093, USA